Airborne-YouTube

AD NUMBER: 2006-12-23
MANUFACTURER: Boeing
SUBJECT: Airworthiness Directive 2006-12-23SUMMARY: The FAA is
superseding an existing airworthiness directive (AD) that applies
to certain Boeing Model 737-100, -200,-200C, -300, -400, and -500
series airplanes. The existing AD currently requires initial and
repetitive inspections of the elevator tab assembly to find any
damage or discrepancy; and corrective actions if necessary. This
new AD adds certain new inspections and removes certain existing
inspections. This AD results from additional reports of airframe
vibrations of the elevator tab during flight on airplanes inspected
per the existing AD;subsequently, considerable damage was done to
the elevator tab, elevator, and horizontal stabilizer. In several
incidents, a portion of the elevator tab separated from the
airplane. We are issuing this AD to prevent excessive in-flight
vibrations of the elevator tab, which could lead to loss of the
elevator tab and consequent loss of controllability of the
airplane.